Tower arrangement

  • During the tower arrangement operation, nine types are available in the Typical Meteorological Area drop-down menu. Select one according to the actual maximum wind speed (average maximum wind speed in 10 minutes collected at the height of 10 m of an open flat ground in 30 years), icing thickness, and minimum temperature. Refer to the values circled by red squares in the following figure.

    Check the details in state grid wind zone map, state grid icing zone map, and minimum temperature table of provinces corresponding to the location of the wind farm project.

    Note: Adopt the maximum values in icing zone map and wind zone map.
  • During the tower arrangement operation, the default value for Typical Span is 250 m and for k value is 0.32. Define the value of Safety Distance according to the actual situation of the project.

    • For scenarios with radical and competitive engineering quantity, such as bidding, set the Safety Distance as 7.
    • For scenarios with relatively conservative engineering quantity, such as feasibility study, set the Safety Distance as 11.

    The higher the safety distance, the higher the tower. The weight of tower thus increases, so does its cost.

  • The location of tower should be selected with consideration of the stability of tower and foundation and convenience of construction, operation, and maintenance. Do no erect tower at the following location:

    • Location with possibility of landslide and mountain torrents
    • Location with possibility of car crash
    • Unstable area that might shift to watercourse
    • Partially unfavorable geological location
    • Safety-threatening location with holes of underground pipeline